- 行业: Printing & publishing
- Number of terms: 178089
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- Company Profile:
McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in Rockefeller Center in New York City. Its primary areas of business are financial, publishing, and business services.
1. In liquid chromatography, the phase that is moving in the bed, including the fraction of the sample held by this phase. 2. The carrier gas in a gas chromatography procedure.
Industry:Chemistry
A technique of volumetric analysis in which the formation of a colored complex is used to indicate the end point of a titration. Also known as chelatometry. Also spelled compleximetric titration.
Industry:Chemistry
That range of values within which it has been calculated that a specified percentage of individual values of measurements will lie with a stated confidence level.
Industry:Chemistry
The difference between the molecular rotation at the extreme (peak or trough) value caused by the longer light wavelength and the molecular rotation at the extreme value caused by the shorter wavelength.
Industry:Chemistry
A sample comprising two or more increments selected to represent the material being analyzed.
Industry:Chemistry
Analysis of a very small quantity of material of a sample by such techniques as polarography or spectroscopy.
Industry:Chemistry
A U-tube variation of electrophoresis analysis that uses buffered solution so that all ions of a given species move at the same rate to maintain a sharp, moving front (boundary).
Industry:Chemistry
Any species in a material undergoing chemical analysis other than the analyte or the solvent in which the sample is dissolved.
Industry:Chemistry
An element in a sample that has an average concentration of less than 100 parts per million atoms or less than 100 micrograms per gram.
Industry:Chemistry
Spectrophotometry at wavelengths in the near-infrared region, generally using instruments with quartz prisms in the monochromators and lead sulfide photoconductor cells as detectors to observe absorption bands which are harmonics of bands at longer wavelengths.
Industry:Chemistry
